help with decode on 69 barracuda fenter tag related to weird interior option

http://www.hamtramck-historical.com/dealerships/1969SalesmansPocketGuidesPlymouth-01.shtml

http://www.hamtramck-historical.com/dealerships/1969PlymouthColorAndTrim-02.shtml

Those two pages should give you the answers to most of your questions.

Cool car, 69 Formula S 383